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Originally Posted by brenx
Mines an 830 annular. I haven't had a 750dp since Jan 05 ;) The 750 for some reason couldn't cope with the 351. What is odd is the 393 has the very same jetting as the 351 apart from the powervalve.
Carb will be the very last thing I change. I was at Hallam Performance today pricing up what it's going to cost me to upgrade my extractors. Hopefully I'll be doing that sometime late Jan/early Feb.
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Brenx,
if you're going to upgrade your extractors get a custom made mandrel bent set done, you'll see a big difference between off the shelf and custom made, and the cost isnt that much more either.
I know a guy who does allot of custom mandrel bent extractors and exhausts, X pipes (V8supercar etc), his work is first class and he uses a scientific approach to calculate the correct tuned runner length for your engine etc rather than guessing, or having to use the compromised off the shelf stuff.
Let me know if you want his number.