Hi guys, just wondering how strong the 3-speed manual trannys are? Will one survive behind a mild 351W if not abused much? (No powershifting.) I'd like to go manual in my '68 and 4/5-speeds are just too expensive for me, but the 3-speeds are dime-a-dozen. I'm about to acquire a '69 351W and am thinking about snagging the 3-speed too if it's a decent tranny.