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Need help with tuning (kinda long)

To: spridgets@autox.team.net
Subject: Need help with tuning (kinda long)
Date: Mon, 21 Oct 2002 21:45:08 EDT
Hi listers:

I need some help with a diagnosis.  I have a 1275 in my bugeye which has been 
out of service since last October after hitting a deer.  After a lengthy stay 
at the body shop I brought it home on a trailer only to have it running so 
poorly it would not pull itself up my driveway.  However the water pump had 
developed a bad leak while at the body shop and was throwing water onto the 
ignition system, so I assumed that was the problem.  I put it up on jack 
stands and proceeded to pull the engine to change to the 5 speed rivergate 
tranny and converted to a header(LCB from APT) but used the rest of my 
previously aquired stainless exhaust system.  Of course I replaced the water 
pump while I was at it.  One possible important point is that the body shop 
savagely hacked the exhaust apart just ahead of the muffler for some reason.  
I mean it looked like they had used vice grips and ripped the pipe apart 
rather than cutting it.  When I got it back they had welded the pipe back 
together, but it's hard to say what the inside of the pipe looks like.  
Anyway, now  I can get it to start and idle OK, and will even rev up well 
once it is warmed up completely, but if you hold the throttle open it starts 
coughing and losing power and RPMs.  I've checked timing - dead on at 10 
BTDC.  I have the Pertronix electonic ignition set up.  I have readjusted 
carbs and used color-tune.  I replaced the plugs and the wires are fairly 
new.   I can't find a setting where it will run right when throttle is held 
part way open.  I'm wondering if the weld job might be restricting the 
exhaust to where there is too much back pressure, but I'm looking for other 
ideas on what's going on.  The car ran great before the deer incident.
Thanks in advance

John O'Brien
'61 bugeye
'65 BJ8

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