Quote:
Originally Posted by bfrank1972
I haven't read this whole thread so apologies if already mentioned, but intake manifold spacers like the Crawford billet power blocks have been shown to make a nice useable shift in the power band for a street car. Those in combination with a quality long tube header, shorter FD, and a tuner who really knows what they are doing - IMHO the best and simplest approach for a street car.
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not when it comes to e85, those blocks are useless if the car is tuned to e85