GaryBisiniere

i have the edelbrock performer rpm with the 1.90 intake and 1.6 ex and 60cc combustion chamber. basically should i sell these heads for around 700$ and come up with the extra money for a set of bigger heads for my 306. or should i stay with these.

mjr46

you could sell them to me for 550.00......anyway It all depends on how much faster you want the car to be and if you plan on notching pistons...how fast is it now?? ve how much faster do you want it??..I have a customer that ran her 68 cougar with a stock roller cam block with f-cam and those heads and a rpm intake and 650 carb...best et was 12.94 @105 with cool air

GaryBisiniere

yea i got mine to go 13.4 with it being hot. i want to eventually go turbo but ill settle for 10.5 to 1 for compression and fuel injection instead of the carb! and down the road i can turbo that and easily push 500.

mjr46

you can turbo the carb too!!! you just need a carb hat and a blow through carb

90lxrider

10.5 is pretty high for wanting to turbo


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my77stang

im in the school of thinking that says if you had stock stuff i'd buy better than those - but if i started with the heads you have i couldnt see myself spending even more for better unless i was racing competitively.

for street play, your fine.

nitrous_bob

what exactly are your plans ?

those heads are fine for dipping in to the 10's even

will your new pistons allow a 2.02 head ?

i'm not even using the rpm's , just the performer 5.0's , w/ heavy port work

the bigger valved heads will not necessarily be better for you

the smaller valve heads w/ some moderate port work will get better results imo, unless your looking to get real serious

if mid 11's are acceptable....keep what you got, get a comp valve job, deck them a bit to get 10:1 (more if your going NA) concentrate on the exhaust ports and and matching mating surfaces. a lot of wierd things going on where you meet the head to the intake etc.