Quote:
Originally Posted by Chris65LeMans
All,
After my 435 blew up earlier this year, I ended up going with a freshly-built 461 from Kauffman. It it done, broken in, dyno'd and on a truck for the journey out to me now. (FOUR months ahead of schedule!!)
It dyno'd at 498 hp and 581 lb of Tq, The carb will be a Prosystems 780 HP.
The engine will arrive with a Fuel pump block off plate installed. Jeff recommends either a Holley 110 GPH mechanical pump or a 180 gph electric pump.
What sort of opinions are out there on mechanical vs. electrical?
Thanks, Chris
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Heat soak and vapor lock are real when using mechanical pumps…and I’ve done a lot of monkeying around with mechanical pumps.
There are plenty that swear they have zero issues with mechanical pumps. Just not me.
If you can’t stand the noise an electric MAY NOT be for you.
I choose an electric ….
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71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day three- 11.04 at 120mph ....1.53 60', 6.98 1/8 mile
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