|
the RWD 3.4 heads are identical to the 2.8 heads...same flow same valves...they suck...now by changing over to the 2000+ heads they have larger valves and a huge in crease in intake flow...and the exaust flow is even better, accually so much better the stock manifolds can't handle itand 1.25' primary headers are too small. not to mention the aluminum heads are lighter than the cast iron heads and the intake is lighter consrtuction as well...now the only issue with the cam so far is which one, and how streetable. i want it to be perfect for the track but it won't do harm for every day use
__________________
2000 Tahoe Z71 5.7
1982 Z28 Pacecar 305
1999 S10 
|