This works real well(???)
I think my 48 IDA's are to small:
<HR> <TABLE style="WIDTH: 380px; HEIGHT: 200px; TEXT-ALIGN: left" cellSpacing=0 cellPadding=0 border=0><TBODY><TR><TH style="BACKGROUND-COLOR: rgb(255,153,0); TEXT-ALIGN: center" colSpan=3>Carburetor Size Calculator</TH></TR><TR><TD style="BACKGROUND-COLOR: rgb(255,255,153)">Engine Size</TD><TD style="BACKGROUND-COLOR: rgb(255,255,153); TEXT-ALIGN: left"><INPUT size=6 value=289 name=EngineSize></TD><TD style="BACKGROUND-COLOR: rgb(255,255,153); TEXT-ALIGN: center"><SELECT onchange=EngineUnitsChanged(this.form.EngineUnitsLb) size=1 name=EngineUnitsLb> <OPTION value=0 selected>Cubic Inches</OPTION> <OPTION value=1>Cubic Centimeter</OPTION></SELECT> </TD></TR><TR><TD style="BACKGROUND-COLOR: rgb(255,255,153)">Maximum RPM</TD><TD style="BACKGROUND-COLOR: rgb(255,255,153); TEXT-ALIGN: left"><INPUT size=6 value=7000 name=MaxRPM> </TD><TD style="BACKGROUND-COLOR: rgb(255,255,153); TEXT-ALIGN: center"></TD></TR><TR><TD style="BACKGROUND-COLOR: rgb(255,255,153)">Volumetric Efficiency (VE)
</TD><TD style="BACKGROUND-COLOR: rgb(255,255,153); TEXT-ALIGN: left"><INPUT size=6 value=90 name=VE></TD><TD style="BACKGROUND-COLOR: rgb(255,255,153)"></TD></TR><TR><TD style="BACKGROUND-COLOR: rgb(255,255,153)">Carburetor Type
</TD><TD style="BACKGROUND-COLOR: rgb(255,255,153); TEXT-ALIGN: left"><SELECT onchange=CarbTypeChanged(this.form.CarbTypeLb) size=1 name=CarbTypeLb> <OPTION value=0 selected>Stock</OPTION> <OPTION value=1>Modified</OPTION></SELECT> </TD><TD style="BACKGROUND-COLOR: rgb(255,255,153)"></TD></TR><TR><TH style="BACKGROUND-COLOR: rgb(255,153,0); TEXT-ALIGN: center" colSpan=3>Carburetor CFM</TH></TR><TR><TD style="BACKGROUND-COLOR: rgb(51,255,51)">Carburetor Size CFM</TD><TD style="BACKGROUND-COLOR: rgb(51,255,51); TEXT-ALIGN: center"><INPUT readOnly size=6 value=52682 name=CarbCFM> </TD><TD style="BACKGROUND-COLOR: rgb(51,255,51)"></TD></TR><TR><TD style="BACKGROUND-COLOR: rgb(255,204,153); TEXT-ALIGN: center" colSpan=3><INPUT onclick=CalcCarbCFM(this.form) type=button value=Calculate name=CFMCalc> <INPUT onclick=ResetCarbCFM(this.form) type=button value=Reset name=ResetCFMCalc> <INPUT onclick=SampleCarbCFM(this.form) type=button value=Sample name=SampleCFMCalc> </TD></TR></TBODY></TABLE>