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blownxd393

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Posts posted by blownxd393


  1. sorry my mistake, you just said it was nicer on the street with the 4v's. my bad.

    All good mate,

     

    The point I am trying to make is that the f246 and 378ci on the street is no slouch down low... From my exsperiance.

     

    Just to add I also used to have a f246 in my tunnel rammed 4v xd also 378ci 12.2-1 comp, 3.5 gears and a UN matched 3k all fast stall . Again the myths of no bottom end power was put to rest even with the ram and twin 750cfm carbs.

     

    Carl


  2. Not sure what they flowed. I ported the oc 2v heads myself years ago but they are faced to 60cc. Still got them on shelf.

     

    What comp and cam you have on the 383 ? Seems strange to me your bottom end issues and even with those cubes should of woken it up earler I would of been thinking.


  3. i agree with everything you said blownxd393 bar the 4v comment. ported 2v's that flow properly are much nicer having driven both i find the 4v's are boggy down low.

     

     

    just to clarify mate, was this particular combo   with the 4v heads a 351ci or 378ci ?  only reason i ask is i had ported 2v heads on my 378 with a 246 and switched to 4v cc heads same cam with zero lathargic bottom end issues. dont get me wrong i love my 2v heads.

     

    i could understand if it was a 351 with your comment.

     

     


  4. dont fit 4v valves to the inlets of the 2v's mate. your doing more work to go slower

     

    the f246 works well with the 378ci and especially on the street but the f246 works much better with 4v heads i found.

     

    in all honesty, i relise you have half the parts but it makes more sense to build a 383 0r 393 and most proberly cheaper in the long run.

     

    what pistons do you have trws ?

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