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Search: Posts Made By: Pontiaco
Forum: Suspension TECH 04-19-2022, 10:16 AM
Replies: 9
Views: 1,069
Posted By JLMounce
Yeah sucks to do, but that really was the best...

Yeah sucks to do, but that really was the best option. You didn't want to have a manual box in there if you want to have any type of handling performance out of the car. Glad to hear you got them...
Forum: Suspension TECH 04-18-2022, 04:54 PM
Replies: 9
Views: 1,069
Posted By JLMounce
My guess is this has something to do with the...

My guess is this has something to do with the High Port heads. I believe the raised ports also effect the location of the exhaust flange. If it's raised, it's pushing the header tubes outwards...
Forum: Pontiac - Boost 11-29-2021, 10:25 AM
Replies: 46
Views: 11,565
Posted By mgarblik
Our experience was with 1972-1973 455 castings. ...

Our experience was with 1972-1973 455 castings. Running Nitrous Oxide with total running HP around 1200 and maximum RPM's of 7000. We had consistent block failure in the same place on all three...
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