O.K, My engine runs great at idle, maybe misses a little once in a while.
But when I run it up to about 1800/2000 it has a bad miss. What could be wrong? The motor is all fresh re-build. Holley 1920.
Could loose lash cause this? (I think it might be a little loose)
The motor shakes visably when it starts making racket. It never "purrs like a sewing machine"... more like "Top Fuel Briggs & Straton". Timing might be a hair off, but It's real close, because alternately gets smoother, and rougher. Maybe it needs a dizzy recurve?
I'm puzzled, and any suggestions are welcome. What's the first and second thing that pops in you head?

A little on the build:
All stock style induction/exhaust(Still no muffler)
264 cam....0.100 off the block
Bowl ported heads/stock valves
point ignition/Accel Supercoil/new wires/NGK plugs

_________________
225 Cubic Inches of Iron-Head American Muscle

225 bored .040 /.100 off block, Schneider Cam 224@.050~ .480 lift - Stock valves, blended bowls, Offenhauser intake with 500 Edelbrock carb

points ignition/higher compression


Im sure you need a recurve......my build is similar and required a very different curve from the stock EI curve.

_________________
Yeah....Im the one who destroyed this rare, vintage automobile.....

Thanks, I asked someone else yesterday, and they said the same thing.
Any particular ignition conversion kit to get/stay away from?
I guess a recurve will be next.....
Thanks!

_________________
225 Cubic Inches of Iron-Head American Muscle

225 bored .040 /.100 off block, Schneider Cam 224@.050~ .480 lift - Stock valves, blended bowls, Offenhauser intake with 500 Edelbrock carb

Well...here what I did....

I had been running stock EI for years ....just dump a 70s dist into whatever slant dist hole got in my way. They all ran fine.


I went to Las Vegas and helped Doug recurve a dist....then I helped somebody else(this time I was the expert).

I came back from Vegas and started swapping springs and test driving. It took me all day but I got a curve that was far and away better than anything I had tried before(stock 65 Valiant Prestolite dist) I limited the mechanical advance to get my intial and total where I wanted them . I used a pop rivet in the advance slot.

Get a pile o springs and a 6 pack of red ale......and a Yardbirds tape. Start early.

_________________
Yeah....Im the one who destroyed this rare, vintage automobile.....

Hmm? Whazzat?

_________________
225 Cubic Inches of Iron-Head American Muscle

225 bored .040 /.100 off block, Schneider Cam 224@.050~ .480 lift - Stock valves, blended bowls, Offenhauser intake with 500 Edelbrock carb

That's slant modifying music...pick your fav guitarist from the band's past, and recurve... (Keith Relf, Paul Samwell-Smith, Chris Dreja, Jim MacCarty...and add one of the following guitar kings below)

"For Your Love" - Eric Clapton

"Over Under Sideways Down" (Having a Rave Up) - Jeff Beck

Roger the Engineer - Jeff Beck

"Happenings Ten Years Time Ago" - Jeff Beck and Jimmy Page

Little Games - Jimmy Page

Live at the Anderson Theatre - Jimmy Page (pre- led zeppelin version of 'Dazed and Confused')

Last Rave Up - Live at the Shrine Auditorium June 30-July1, 1968 (long version of Dazed and Confused, Page's version of 'Beck's Bolero'...hard to find bootleg now...)

Sorry, been 'archiving' my vinyl with a USB turntable....


-D.Idiot

"Yeah I got that, too..."

Got both Box of Frogs albums?

BigBlockBanjo,

Now that my rebuild is finally breaking-in, (16,000 miles), I am finding that I have a stutter too. If I ease on the throttle, it stutters between 1200 and 2000. If I give it a little more gas it clears up. I am running a little rich (#57 jet). If I punch it you never notice, only at light throttle settings. At 2000 rpm the stutter goes away. If I punch it the tires break loose, and no stutter....

I am going to try a lighter MOPAR DCC-2932675 spring, same as the MRG-925B springs, and leave the heavy stock looped spring in there to see if it will clear up. I am thinking it needs a little more advance. I am at 20 degrees initial. The idle is fine at 750, a little lopy in gear at about 600 rpm.

I have a few intake leaks that developed which maybe contributing factors. Need to install the Aussie carbon fiber intake/exhaust gasket.

Let me know how it goes....

_________________
Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG