Valve sizes for 360 head stroker?

One for Moper, BJR etc -

Wondering which would be better -

Engine will be 318/390 cui SB stroker running cast '586' 360 heads that currently flow around 235 @.550-

1.5 Factory adjustable rockers (yeah I know - 1.46:toothy10:)

Heads have been taken out as far as my guy wants to go.

Am I better off :

A - Running the existing 1.96 tulip valve with 3 angle valve job - or

B - A 2.02 backcut nailhead with a 5 angle valve job?

No other options available due to budget - but I have the SS Nailheads in the shed.
Author: admin