I am rebuilding my 1958 185HP Dearborn Interceptor (292 Y-Block w/two Carter YH carbs) in my 1958 Century Resorter speedboat and I have a few questions. The original block and heads (EBZ-G...sob) have damage due to salt water so I am rebuilding what I think is a 56/57 automotive 292 (EBZ-C heads)

1. The original cam had wiped one lobe. I have a used original in reasonable condition from the 56/57 motor. Should I use this, buy a stock replacement for $70 -$80 from Dennis Carpenter, or invest in aftermarket mid range cam (Erwin 210/210 for example) at around $215. The rpm range is currently 700 to about 4200 WFO when in perfect tune. It would be nice to get a few more ponies around 4000 to 4500 that could equate to few more MPH, however, smooth idle is important.

2. I understand that earlier 351W valves can be used to some benefit in small valve heads. The stock intakes are 1.78 in the EBZ-C heads and the 351 valves are 1.84. Any benefit in my operating range or should I stick to the stock sizes? The 351W spec a tad longer...is that a problem?

3. I plan to replace the lifters. Are the ones on ebay at $100 a set (likely Asian origin to OEM specs...so they say)to be avoided? The cheapest I found for a USA made set is $175.


Thanks!

Paul R.