ok im not expecting big numbers because i have an lg4 (for now) but just curious if anyone has an idea on numbers for: lg4 with true duals (3" h pipe into summit racing muffs, dumped after 2 ft) 1 5/8 hedman long tubes, dual air cleaner with kn air filter if i can manage to find the parts to fabricate it. swapped in electric fan from clutch, rebuilt carb with better secondaries rods hangers jets etc (extremely ignorant on carb stuff, someone elses handy work) car has 3.73 gears. this is just all stuff i can afford for now and cam and heads that will also work on a 350 may come down the road, just trying to get a rough idea of that stuff for now. ohh and apparently PO put a hypertech chip in it which i have not heard good things about but apparently is "ok" for a stock motor..i dont know if that adds anything to the set up or hurts it really.

 

The car had 150 HP from the factory. The exhaust upgrades probably brought that up to 160-165.