Patrick
Just wondering if this car is a Silver with Blue stripes car from the St. Catherines area that was at the Classic Car Auction at the International Center a couple of weeks ago. Anyway can't help you much in the engine advice area since if a small block guy but West Coast is owned by Vern and Debbie Riddel out of Windsor Ontario. I found their website once under "Cobra Country". Their chassis are well built but not for performance, A friend of mine in Bolton has a West Coast with w 429SCJ with aluminum heads and a C6 Auto, does a respectable 12.6 in the 1/4 mile and tips the scales at a whopping 3300#. Track times and autocross are right at the bottom at this years R&G, BUT he drove the 800 miles there and back. He puts between 6000 & 7000 miles a year on his car and thats what he built it for.
Andy