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GTX JOHN · 07-02-2020, 03:55 PM

Small heads with poor head flow.
Small CFM Carb,
Poor flowing intake.

Compare it to our 400
Much better heads
Huge carb
Efficient Intake

294HP With original heads = Better flowing by
a bunch plus large exhaust valves

You need to go .10 under to get a HP reduction
I do not think I could build one fast enough to go
under index!

The engine would need to be 280 HP to be competitive.
That is a 60 HP reduction.

1962 New Yorker is a beast and pushes a ton of Air down the Track.

07-02-2020, 03:55 PM	#2
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,719 Likes: 2,760 Liked 2,425 Times in 687 Posts	Re: 1962 c 413/340 Small heads with poor head flow. Small CFM Carb, Poor flowing intake. Compare it to our 400 Much better heads Huge carb Efficient Intake 294HP With original heads = Better flowing by a bunch plus large exhaust valves You need to go .10 under to get a HP reduction I do not think I could build one fast enough to go under index! The engine would need to be 280 HP to be competitive. That is a 60 HP reduction. 1962 New Yorker is a beast and pushes a ton of Air down the Track. __________________ John Irving 741 Stock 741 Super Stock Last edited by GTX JOHN; 07-02-2020 at 03:57 PM.