5spd awsome! Turbo 603's seem to hold up real well to, their are many example's running around with 400k+ miles on them. Mine has 235k and runs perfect, no blow-by at all. What is red line on it? Mines good for just under 5k. I also get about 24mpg-25mpg around town.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200