73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Performance => Topic started by: Carlosg254 on November 10, 2013, 11:37:38 am
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Hey I was wondering if someone here could help me out,
I wanted to know about how much hp I'm making and my 1/4 mile times
This is a list of the mods
355 sbc
Holley 4bbl 750cfm
Performer rpm intake
64cc aluminum heads
1.6 rockers
Comp cam xfi Adv. 268/280
@50 224/231 .520/.515 113
Comp pro magnum lifters
Longtube headers
Flowmasters with 2 1/2 in pipe
The old cam was a 230/230 .496 106 lsa
Which cam was Better?
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I have seen similar combos that advertise 400hp/420tq.
Despite the marginally greater valvetrain stresses I prefer higher lift, short duration, wider lsa cams for their torque.
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Anyone know what it would run in the 1/4 mile it has stick rear end and a 700r4
Hoping to get a 3.73 posi real soon