The lack of a cat could also be messing up the computer which ifI'm
not mistaken controls the iming.
Sterling
On Sun, 22 Jul 2001 16:55:56 EDT, dakota-truck@buffnet.net wrote:
> Hey All,
>
> As you all know I have installed the Hughes 1418 cam and
> sprnigs/reatainers/1.6 rockers/ported intake and TB.
> I started her up and had backfiring probs which were stopped by
resetting
> the distributor to the cylinder #1 mark at TDC. That stopped he
backfires,
> however the truck is still running on less power than before the mods. It
> idles right where it should (with the hot cam) at 750 RPM. I think the
timing
> may still be off and was wondering if it is something I can check with a
> timing light or not?
>
> I used to time my old hot rods by ear with good results but I wasn't sure
if
> the computer would cause that method to be ineffective.
>
> Also if anyone knows what else could be causing the power loss send me
your
> ideas. I don't think its an air leak because it idles fine and doesnt
> backfire.
> Could i be the fuel mixture? how might I check this?
>
> here are my mods
>
> 95 cc 318 auto, transgo shift kit, HE stage II TB and intake, HE 1418
cam,
> 1.6 Roller rockers, MSD digi6+, MSD HVC coil & 8.5 wires, Hp cap + rotor,
MP
> PCM, DT headers, Gibson exhaust (3" from headers back, no cat), 180 stat,
> autolite 3923's, progear DR timing chain, 24# FMS injectors, auburn LSD,
4.10
> gears, superior axles, K&N X-stream filter system, MP valve covers
>
>
> John S
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