View single post by Jim Ketcham
 Posted: 02-17-2015 02:17 pm
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Jim Ketcham

 

Joined: 03-13-2005
Location: Salt Point, New York USA
Posts: 208
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 I always go back to basics to trouble shoot an engine. It's either spark or fuel. If there is strong spark at the spark plug at the right time then it's fuel. I think you are on the right track tackling ignition first.
You do not mention how long the car has been idled or if it ran well with the Dellorto carbs and MSD previously. The car's history is important before we can make good assumptions.
Before tackling the carbs I would confirm the fuel is fresh, the filter is not plugged including the filters at the Dellorto carb inlets, and the fuel pressure is correct ( 2.5psi for Dellortos). I have found that properly jetted and tuned Dellortos are close to bullet proof and require minimal adjustment.
If you do not know the history of the car and whether it ran well previously in its current configuration you may have to check the Dellorto jetting. Recommended jetting for the stock 907, as well as, 2.2 L stroker configurations can be found on this board. I have found the jetting recommendations listed by Greg Fletcher to work excellently and have used them on several stock and 2.2L engines with great results.
Good luck,
Jim