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Re: edelbrock performer rpm 440 heads
[Re: Ari440]
#954417
03/21/11 03:02 AM
03/21/11 03:02 AM
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Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
MoparBilly
master
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master
Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
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Quote:
Quote:
Likewise for me, just went through my collection of old springs until I found a set of inners that gave me the right pressure. When I pulled the 312/590 out and went with the 304/640 ultradyne, I upgraded to crower spriings and Titanium retainers.
was the U/D 640 faster then the 590 cam
Wasn't a fair A to B comparison...broke the motor, so along with the cam swap, I went from LY/TRW to BME/ROSS...
Same car, trans, gear, heads, carb, headers, cubic inch, and compression...10.60 to 10.00 
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines
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