windshield frame to bench seat dimension

is there a common distance from the cowl, door opening area to the seat ?
iam building a model A speedster, using the cowl, windshield, and dash.
iam going to use a speedster bench seat.
iam looking for a dimension from the windshield frame to where i should
place that bench seat.
hope that makes sense ....

thanks to all
 
Back
Top