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Author Topic:   NEED JETTING BASELINE
klw45black
Member
posted July 28, 2004 09:43 AM
Could someone give me some guidlines for jetting with alcohol. 355 ci sbc with sportsman heads 750 cfm super victor intake, small solid cam, typical mod headers. Would also like some timing baselines too & how little or much can you go and stay healthy. Should the plugs read about the same as gas and what should I look for when trouble is looming. Thanks


dirtbuster
Member
posted July 28, 2004 09:54 AM
What kind of carburetor?
How small is small solid cam?



klw45black
Member
posted July 28, 2004 10:13 AM
Carb is a DP Holley with a C&S base plate,carb has #92 in it now, Cam lift is @ .536 in & .527 ex. Dur @ .05 is 251 deg in & 264 deg ex with 106 deg of lobe sep. I run valve lash @ .018.


21racer
Member
posted July 28, 2004 07:52 PM
88 to 90 jets probably would be the range. may be differant for your air if engine runs hot u need more jet if turns oil milky you need less. you will have to play with it. i run 36 deg. timing with msd ignition have ran up to 38. that is total advance timing hope this helps


klw45black
Member
posted July 29, 2004 08:23 AM
Thanks, 21racer, thats simple enough! Just working out the new car bugs. Sounds like I'm close.


kevm711
Member
posted August 01, 2004 06:36 AM
Hi guys...I`m new to this and was wondering the same baseline jetting question for alky. I run a 377 with HP Holley 750 and .160 jets and it seems to run fine, haven`t had it on a track yet to get a good plug reading though, just circle track in the pasture time and I barely have any color to the plugs. Any way I was just wondering how a 90`s size jet could be possible when Holleys alky jet kits start with .132 to .200. Thanks


Xtrem4U
Member
posted August 01, 2004 08:56 AM
Alky-377roller-KP750 holley. Started @ 166's looked like I was drivin' a flame thower- went down to 155 or 156's does fine now!


kevm711
Member
posted August 01, 2004 07:47 PM
Thanks Xtreme...now I know I`m in the ballpark


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