menlatin

So my truck is going to be back on its feet soon, and i'm looking to get it tuned. Its got a speed demon 750 that i just can't seem to figure out. I've got a holley jet kit and the holley tuning kit with the squirters and accel pumps and pump cams.

I've been experiencing an a pretty bad bog, actually more like a cut off when i punch it under 2000 rpm

specs:
355 sbc
ported gm 441's flow 284/237 @ .600"
srp domes for ~11:1
comp nx 274 hyd flat tap cam 230/244 @ .050"
weiand single plane
cheap headers
2 x dyno max 3" bullets
Accel stock replament dist with hei super coil
Autolites, 2 steps colder than stock
750 speed demon mech 2nds

behind it is abuilt 700r4 with 3200 9.5" converter ->4.10's

AAron

if it bogs/ cuts off, in my experiance it is the secondaries. and mechanical ones are always fun to get correct. but that said make them open much later and see if that helps.

Brandon Boomhauer

iTrader: (10)

I've got a screwdriver or two here..



sending pm.

menlatin

it does the bod even with jsut the primaries. I;ve tried like every jet from 64 -> 76 in the primaires and 70-> 83 i the secondaries. changed the squirters a couple times and played with cams, but just can't get it. One thing that did help a little was puting a spacer instead of spring for the primaries acel pump arm. Still needs work though. Brandon, i'll check out speed works as well.

SERIALPIMP

iTrader: (4)

Chuck Nuytton is in Garland,

AAron

sorry i meant it is in the secondaries opening too soon. maybe not the jetting.