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*Sharps40* · 02-26-2014, 10:59 AM

I'm a bit more likely to invest $200 in a Wideband O2 so I can have a blast tweakin jets on that carb and get instant feedback instead of drivin thru a tank o gas with each update.

For now, phenolic spacers for the current adapter are inbound along with some richer secondary main jets to pick up the 2500 to WOT response.

Just busted 18.6 mpg combined and the plugs look great/no lean hole on the secondary...so I think the main is in perfect for the new engine/trans combo. But the secondary builds power just a bit slow, which is an indication it could stand to be a bit fatter on jetting.

After the secondary and leak is fixed I plan to start changing total timing around to see what this engine prefers. I'm 4K miles into the new engine and ready for oil change #3 so its spring and time to get jiggy with the final tune.

02-26-2014, 10:59 AM	#19
Sharps40 Account Suspended Join Date: Oct 2012 Location: here Posts: 2,408	Re: Insulating I6 Exhaust Manifold Photos I'm a bit more likely to invest $200 in a Wideband O2 so I can have a blast tweakin jets on that carb and get instant feedback instead of drivin thru a tank o gas with each update. For now, phenolic spacers for the current adapter are inbound along with some richer secondary main jets to pick up the 2500 to WOT response. Just busted 18.6 mpg combined and the plugs look great/no lean hole on the secondary...so I think the main is in perfect for the new engine/trans combo. But the secondary builds power just a bit slow, which is an indication it could stand to be a bit fatter on jetting. After the secondary and leak is fixed I plan to start changing total timing around to see what this engine prefers. I'm 4K miles into the new engine and ready for oil change #3 so its spring and time to get jiggy with the final tune.