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Old 10-21-2019, 08:20 AM
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footjoy footjoy is offline
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Quote:
Originally Posted by 1funride View Post
I have the 72cc heads on my 400 with a cam not much different than the 2802, very streetable, easy cruiser. I made 276 to the wheels with a dyno jet, I had a rusty flowmaster exhaust on it and a flex fan. I changed to a straight through magnaflow and that made a big difference on the mid to top end power. I think with a fan change I could be approaching 300. I would swap out the heads to 72cc and get a little bigger cam, then you will have a snappy engine.
What converter would I have to use with that cam?

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  #2  
Old 10-21-2019, 09:20 AM
1funride 1funride is offline
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I have a TH400 with 3.42 gears, Hughs GM25BPO400BP converter, I believe its a 2500 stall. The cam is an ultradyne 274/282 226/233 with .515 lift intake and exhaust with 1.65 rocker, LSA is 112 ICL is 107. Converter is tight on the street and you cant notice its there, does offer some performance increase though.

Not a drop of ping and I run 89 octane, the cam is mild, idles with just a hint of performance, is very responsive on the street. If you search my posts there is a image of the dyno runs and also video link to the dyno run. That was with the flowmaster exhaust, the magnaflow exhaust definately added power and responsiveness, it was quit noticeable.

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