engine choice?

[Sam Capizzi Jr]

Totally missed this thread. Idk where to start but I will say that the flat top piston on the 318 (which is the only legal one as far as I know) is one of the limiting factors...I've reached the point where the only improvements on my car will come in the form of cubic dollars spent....also there is a single plane intake legal for the earlier year 318s that should be faster BUT the engine isn't making any horsepower over 6300 anyway so who knows.