Quote:
But aside from that, many of the problems with long runner designs derive from the fact that the fuel has so far to travel before reaching the intake port. The addition of heat helps to vaporize the fuel so that it doesn't puddle in the floors of the runners. The better solution is port fuel injection where the fuel is sprayed at or very near the intake port. TBI is easier to implement but it has most of the problems of carburetion and few of the benefits of port injection.
x2 Been there, learned the first time on the way back from Seattle when a homemade rear dutra exhaust leak kept the under hood temps up and allowed for some really good gas mileage...I'm still contemplating a heated air intake for my street hpak, but I know the heated box does work especially when the mornings are under 43 degrees...the split manifold helps dial in perfect mix...TBI will have all the same problems the carb does (if the intake is cold the TBI will just run the injectors richer for longer to make up for the A/F ratio until the heated intake vaporizes the surplus gas in the plenum then it will go very rich until it clears, or washes down the cylinder walls). You may also have side to side temp/ mix variances so you may need one injector to fire a bit more than the one closest to the fire wall if you mount the TBI with 1 injector for 1-2-3, and the other for 4-5-6...
MPEFI will be as good as it gets, but you will have to dial in a fully custom map..from scratch...
You might experiment with the electric heater, but the clifford intakes are made of some kind of aluminum scrap floor scrappings and they take a while to heat up (One of my first temp checks showed the warmed up engine could have 150 degree F surface temp at the head, but the plenum temp would be 80-100 degrees...
Now get out to the garage mock up your setup and start some garage engineering!!!!
-D.Idiot