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Old 02-08-2013, 08:06 PM
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chevy horse power

hello every one glade to be on this sight

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Old 02-08-2013, 08:14 PM
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hello i have a 60/over 350 chevy engine with a scat rotating as with pro comp heads 208 valves block is decked 0 cler heads are angle cut has a 680 rollor cam 850 barry grant carb with a elderbrock intake performer flat top pistons i was wondering if any one would know about how much power it should have we used 300 shot nos on it for a while it is very strong thank you
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Old 02-08-2013, 08:28 PM
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Hello back and welcome to the forum, hp is not a guessing game, you may have 350, 400, 450 who knows and who knows where, rpm wise that max. hp and torque really is. Only way to really know is the dyno cell. Also....and this is just a pet peeve, it's Edelbrock.
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Old 02-09-2013, 08:34 AM
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Looks like you have a mish-mash of parts, and may not have an effective combination.

High flowing heads and "Performer" don't go together. Performer is a low-speed power maker, high flow heads are for high speed power (engine speed). 2.08 intake valves are not recommended for the 4" bore. Those heads should be used on the 4 1/8" bore. We've found 2.055 intakes to be the largest effective with the smaller bore (the cylinder wall "shrouds" the intake valve).

.680" lift is nice, but what's the duration? The "@.050" numbers are far more indicative of power and RPM range. Need the LSA as well.

Heads being "angle milled" is an old-school approach to making more power with the 23 degree heads. By "rolling it over" some, the entrance to the cylinder is more efficient. It also removes volume from the chamber "quicker" than a flat mill. The practice is losing favor in recent years, mainly due to the advance in cylinder head technology making it unnecessary.

With the BG carb, this almost sounds like a "magazine build".

Get back to us with chamber volume and cam duration, and maybe we can make suggestions to "salvage" the bottom-end and much of the valve train and still make maximum power. What size headers and weight/type of car is also helpful information. ]

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Old 02-09-2013, 01:42 PM
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all random parts and N) 2 would not be a good choice with that mix of parts,what HC said and welcome to the forum.Its a great place
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