my 360 : holley 750 wac, rpm air gap, edel heads, lunati 60404, headers, kb 10.9cr, hope to get around 450hp..some one here with this set up ?..it's my new engine i built but not start it up yet..

 

How many cubic inches. Is it stroked or bored? Are the pistons above or below deck and how many cc's are the heads? Exhaust manifolds or headers? What exhaust?

 

Maybe.... But we have questions? Roller valve train? Stock rotating assembly? LA or Magnum?

Eddy heads are 58cc. (don't quote me, memory ain't what it use to be). They come stock with a Pioneer labeled spring. The duration on that stick "in theory" will make that power but you have some restriction in the build in my opinion and may get into valve train stability issues.

Your heads are fine. They will support 450 all day. You need a triple spring matched to the exact cam. Or beehive spring.

Swap to a free flowing single plane intake.

Try XE275HL cam. More lift less duration to keep that valve train stable with peaks or use XE285HL if you are towing it but you will peak past 6500rpms and need an 850 carb. If you have a roller valve train you will hit 450 with XE275HL.

You need minimum 1.75 full length header.

 

forget : roller tip (1.5), max ported heads for my next summer hot up with xe295hl, la 360, junior intake, 1.3/4 headers and holley 850dp..

 

A zero deck, aluminum head flowing 260cfm to 290crm (ported EDDYs), 1.3/4 header, single plane intake, 850 carb can make 450HP.

Here is something to consider before you buy that 295 cam.

Current testing these days is revealing that big flat curve power can be had with big heads and smaller cams. Just look at your coyote and LS motors. Yes, some are variable timed but still tiny cams pulling 400hp.

I watched a 350 chevy with similar heads as yours run the crank dyno the other day with a 286H cam. Pulled 410HP with an small dual plane intak but peaked in an unusable rpm for corner speeds needed. Dropped to 280H cam and lost 12 HP but gained more power in usable rpm for that application. We tune the engine with the cam.

I would run what you have this season. It will be alot of fun. Then swap the intake and header and run it with the current cam. Maybe a 1.6RR if you still need to purchase rollers since Eddys use a Chevy rocker in the Mopar application. Then Collect the data from your runs and then pick the cam.

Good Luck........

 

if i changes to lunatis "voodo mek" or a roller.. if i takes a roller cam with the same times like the xe295hl, can it give me more power ? i read of the rpm air gap and that was the best intake for the street, the top end power between the junior intake was just 12 hp, but with a rpm intake it give more tq with a 1 inch open spacer, are that realy true, i mean the rpm intake is a big dual plane and should not be open up the plenum that way..

 

All thing being equal a roller (mech or hydraulic ) will allow the engine to work with less friction. So YES. BUT if the cams to big its design are irrelevant.

 

i'm go for a mek or roller cam..thanks for your advicve

 

i mean my edel heads have 63cc (not 36cc)..sorry